Robin Williams, who died Monday at 63, was a comedic inspiration for many performers, and he also was a brilliant dramatic actor.
In 1998, he won an Academy Award for best actor in a supporting role for his performance in "Good Will Hunting."
Here are some reactions from those who worked with Williams and those who looked up to him professionally:
Ellen DeGeneres @TheEllenShow
I can't believe the news about Robin Williams. He gave so much to so many people. I'm heartbroken.
Kathy Griffin @kathygriffin
I met this sweet, generous & brilliant man Robin Williams in 1991.
Dane Cook @DaneCook
I'm in utter disbelief that Robin Williams is dead.
jason alexander @IJasonAlexander
Ah Robin, I'm so sorry the earth couldn't stay worthy of you. Hope happiness awaits you.
George Lopez @georgelopez
Robin Williams ~ Vaya Con Dios my friend , I love you
Fran Drescher @frandrescher
So sad Robin Williams died :( We did 2 films 2gether. He ws a very lovely man & kind caring person. My heart goes out 2 his loved ones.